1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2015 Atmel Corporation
4 * Wenyou.Yang <wenyou.yang@atmel.com>
8 #include <debug_uart.h>
10 #include <asm/arch/at91_common.h>
11 #include <asm/arch/atmel_pio4.h>
12 #include <asm/arch/atmel_mpddrc.h>
13 #include <asm/arch/atmel_sdhci.h>
14 #include <asm/arch/clk.h>
15 #include <asm/arch/gpio.h>
16 #include <asm/arch/sama5d2.h>
18 DECLARE_GLOBAL_DATA_PTR;
20 static void board_usb_hw_init(void)
22 atmel_pio4_set_pio_output(AT91_PIO_PORTB, 10, 1);
25 #ifdef CONFIG_BOARD_LATE_INIT
26 int board_late_init(void)
28 #ifdef CONFIG_DM_VIDEO
29 at91_video_show_board_info();
35 #ifdef CONFIG_DEBUG_UART_BOARD_INIT
36 static void board_uart1_hw_init(void)
38 atmel_pio4_set_a_periph(AT91_PIO_PORTD, 2, ATMEL_PIO_PUEN_MASK); /* URXD1 */
39 atmel_pio4_set_a_periph(AT91_PIO_PORTD, 3, 0); /* UTXD1 */
41 at91_periph_clk_enable(ATMEL_ID_UART1);
44 void board_debug_uart_init(void)
46 board_uart1_hw_init();
50 #ifdef CONFIG_BOARD_EARLY_INIT_F
51 int board_early_init_f(void)
53 #ifdef CONFIG_DEBUG_UART
63 /* address of boot parameters */
64 gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
75 gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
76 CONFIG_SYS_SDRAM_SIZE);
80 #define AT24MAC_MAC_OFFSET 0x9a
82 #ifdef CONFIG_MISC_INIT_R
85 #ifdef CONFIG_I2C_EEPROM
86 at91_set_ethaddr(AT24MAC_MAC_OFFSET);
94 #ifdef CONFIG_SPL_BUILD
95 void spl_board_init(void)
99 static void ddrc_conf(struct atmel_mpddrc_config *ddrc)
101 ddrc->md = (ATMEL_MPDDRC_MD_DBW_32_BITS | ATMEL_MPDDRC_MD_DDR3_SDRAM);
103 ddrc->cr = (ATMEL_MPDDRC_CR_NC_COL_10 |
104 ATMEL_MPDDRC_CR_NR_ROW_14 |
105 ATMEL_MPDDRC_CR_CAS_DDR_CAS5 |
106 ATMEL_MPDDRC_CR_DIC_DS |
107 ATMEL_MPDDRC_CR_DIS_DLL |
108 ATMEL_MPDDRC_CR_NB_8BANKS |
109 ATMEL_MPDDRC_CR_DECOD_INTERLEAVED |
110 ATMEL_MPDDRC_CR_UNAL_SUPPORTED);
114 ddrc->tpr0 = (6 << ATMEL_MPDDRC_TPR0_TRAS_OFFSET |
115 3 << ATMEL_MPDDRC_TPR0_TRCD_OFFSET |
116 4 << ATMEL_MPDDRC_TPR0_TWR_OFFSET |
117 9 << ATMEL_MPDDRC_TPR0_TRC_OFFSET |
118 3 << ATMEL_MPDDRC_TPR0_TRP_OFFSET |
119 4 << ATMEL_MPDDRC_TPR0_TRRD_OFFSET |
120 4 << ATMEL_MPDDRC_TPR0_TWTR_OFFSET |
121 4 << ATMEL_MPDDRC_TPR0_TMRD_OFFSET);
123 ddrc->tpr1 = (27 << ATMEL_MPDDRC_TPR1_TRFC_OFFSET |
124 29 << ATMEL_MPDDRC_TPR1_TXSNR_OFFSET |
125 0 << ATMEL_MPDDRC_TPR1_TXSRD_OFFSET |
126 3 << ATMEL_MPDDRC_TPR1_TXP_OFFSET);
128 ddrc->tpr2 = (0 << ATMEL_MPDDRC_TPR2_TXARD_OFFSET |
129 0 << ATMEL_MPDDRC_TPR2_TXARDS_OFFSET |
130 0 << ATMEL_MPDDRC_TPR2_TRPA_OFFSET |
131 4 << ATMEL_MPDDRC_TPR2_TRTP_OFFSET |
132 7 << ATMEL_MPDDRC_TPR2_TFAW_OFFSET);
137 struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
138 struct atmel_mpddr *mpddrc = (struct atmel_mpddr *)ATMEL_BASE_MPDDRC;
139 struct atmel_mpddrc_config ddrc_config;
142 ddrc_conf(&ddrc_config);
144 at91_periph_clk_enable(ATMEL_ID_MPDDRC);
145 writel(AT91_PMC_DDR, &pmc->scer);
147 reg = readl(&mpddrc->io_calibr);
148 reg &= ~ATMEL_MPDDRC_IO_CALIBR_RDIV;
149 reg |= ATMEL_MPDDRC_IO_CALIBR_DDR3_RZQ_55;
150 reg &= ~ATMEL_MPDDRC_IO_CALIBR_TZQIO;
151 reg |= ATMEL_MPDDRC_IO_CALIBR_TZQIO_(100);
152 writel(reg, &mpddrc->io_calibr);
154 writel(ATMEL_MPDDRC_RD_DATA_PATH_SHIFT_TWO_CYCLE,
155 &mpddrc->rd_data_path);
157 ddr3_init(ATMEL_BASE_MPDDRC, ATMEL_BASE_DDRCS, &ddrc_config);
159 writel(0x3, &mpddrc->cal_mr4);
160 writel(64, &mpddrc->tim_cal);
163 void at91_pmc_init(void)
165 struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
169 * while coming from the ROM code, we run on PLLA @ 492 MHz / 164 MHz
170 * so we need to slow down and configure MCKR accordingly.
171 * This is why we have a special flavor of the switching function.
173 tmp = AT91_PMC_MCKR_PLLADIV_2 |
174 AT91_PMC_MCKR_MDIV_3 |
175 AT91_PMC_MCKR_CSS_MAIN;
176 at91_mck_init_down(tmp);
178 tmp = AT91_PMC_PLLAR_29 |
179 AT91_PMC_PLLXR_PLLCOUNT(0x3f) |
180 AT91_PMC_PLLXR_MUL(82) |
181 AT91_PMC_PLLXR_DIV(1);
184 writel(0x0 << 8, &pmc->pllicpr);
186 tmp = AT91_PMC_MCKR_H32MXDIV |
187 AT91_PMC_MCKR_PLLADIV_2 |
188 AT91_PMC_MCKR_MDIV_3 |
189 AT91_PMC_MCKR_CSS_PLLA;